Per adolf nilsson



(No Model.)

P. A. NILSSON.

2 S'heets-Sheet 1.

MACHINE FOR THE MANUFACTURE OF HORSESHOB AND OTHER NAILS.

oi go 0 b Witnesses.

Patented Oct. 14, 1890.

Inventor,

(No Model.)

2'S11eetsSheet 2. P'. A. NILSSON. Y MACHINE FOR THE MANUFACTURE OFHORSESHOE AND OTHER NAILS. No. 438,556. Patented Oct. 14, 1890.

Witnesses,

HINRICH EHLERS, OF BAHRENFELD, GERMAN Y.

MACHlNE FOR THE MANUFACTURE OF HORSESHOE AND OTHER NAILS.

SPECIFICATION forming part of Letters Patent No. 438,556, dated October14, 1890.

I Application filed January 29, 1890. Serial No. 338,494. (No model.)

To all whom it may concern.-

Be it known that I, PER ADOLF NILSSON, a

, subject of the King of Sweden, and a resident of Gothenburg, in theKingdom of Sweden, have invented certain new and useful Improvements inMachines for the Manufacture of Horseshoe and other Nails, of which thefollowing is a specification.

My invention relates to improvements in machines for the manufacture ofhorseshoe and other nails; and it consists of the construction andarrangement of mechanism for eifecting successively the jumping of thehead, then stretching or rolling out, and finally pointing and clippingthe shaft of the previously cut or punched nail-blanks. I attain theseobjects by the mechanisms illustrated in the accompanying drawings, inwhich Figure 1 is a vertical longitudinal section of the entire machine;Fig. 2, a vertical crosssection thereof; Fig. 3, a top view of theentire machine, partly in horizontal section; Fig. 4, a vertical sectionof a part of the machine, showing the device for stretching or rollingout the shaft of the nail-blank; and Figs. 5, 6, and 7 show the dies andknives in connection with the actuating parts effecting the pointing,shaping, and clipping of the shaft of the nail-blanks.

Similar letters refer to similar parts throughout the several views.

The nail-blanks, after having undergone the preliminary cutting orpunching operations, are inserted into notches a in a ring a, revolvingupon the annular projection a of the stationary bed-plate A, andprovided with ratchet-teeth at its outer edge. This ring a receives atcertain intervals a partial circular motion from a lower shaft w throughthe medium of an eccentric 1), rod b lever 12' b and pawl arrangementI), so that each time it moves a sufficient distance for a fresh blankto be exposed to the action of the various devices from which it is toreceive its final shape. The said lower shaft w is driven from the mainshaft w by means of the spurwheels c. As soon as a blank is broughtinline with the j umping-die it is seized by a pair of jaws or tongues f,connected with a pivoted lever f f and operated from the main shaft toby a cam f 4 and spring f these jaws f being caused to open precisely atthe moment when the blank is moved up to them by another cam f actingupon the arm f of the tongue, whereupon they immediately close under theaction of a spring f Fig. 1. In be ing thus seized by the jaws f theblank is at the same time lifted in position to be locked betweenlateral and longitudinal jaws or cheeks d d 01 d The first two cheeks dd are stationary, while the two others 01 d are fitted in movablecarriages d d, and are so shifted in relation to either of the first twochecks by the joint action of a cam d and lever 01, Fig. 1, on one handand that of the circumferential projecting portion d of theabovementioned cam f operating the tongue f and a lever (2 Fig. 2, onthe other hand, that the blank as it is raised in position is locked inbetween them and the corresponding fixed cheeks d d. The die g, which ismoved bya conveniently-arranged carriage g toward the blank, isoperatedby a lever g g through the medium of a slide g which holds theedge 9 of a heart-cam g engaged between running sheaves g g, and isthereby caused to advance or recede the required distance. movablecheeks d d recede at the same time as the die 9 moves back to itsoriginal position, so that the blank, with its head stamped into shape,is released, and being once more grasped by the jaws f is reinsertedinto the catch-ring a, by which it is carried forward a sufficientdistance to enable it to take up its position between a side cheek h anda small roller h, where the nail-shaft is stretched or rolled out towardits point to the length desired. For this purpose the said cheek h,which is fitted in one arm f apivoted lever 11 i, is caused to advancetoward the blank under the influence of a cam '5 mounted on the shaft w,while on the other hand a rod 10, which carries the aforesaid smallroller h, is drawn downward by an eccentric k Fig. 4, on the same shaft,so that the small roller 77;, which is mounted besidethe said roller hat the end of the rod 70, is carried along an incline Z on the frame ofthe machine. The

The

consequence is that the roller h it descends presses against the shaftof the nail with a gradually increasing force, and thereby stretches thesame to the length desired and into shape toward its point. \Vhen thepair of rollers h ]L2 have reached the end of the incline Z, they aremade to roll up again, while at the same time the lever-arm 1', carryingthe side cheek h, swings back, together with the said check h, and underthe action of a spring 1' thus releasing the blank. This is thenfurthercarried on by the ring a toward a carriage 'm, which is movedbackward and forward at the proper intervals by a cam g, mounted on themain shaft 10 and acting upon runners m m and thus alternatelyapproaches or recedes fromthe blank. In this carriage m are arrangedboth the intermediate die'n and the cutters o 1) at a distancecorresponding to the intervals between the notches a in the ring a, sothat the said die n is enabled to sharpen one side of the point of theblank and slightly to bend the same, while at the same time the cutters0 1) clip away the waste and cut into shape both sides of the blank,which has just before undergone the action of the intermediate die n,and finally provides it with a sharp point. The nail thus completed isby a further partial turning of the ring cteaused to meet a bracket 0',fixed in an inclined position in the stationary plate a, whereby it isexpelled laterally from the notches a and drops out of the machinethrough a slot 8, provided for the purpose in said plate c.

Having now particularly described and ascertained the nature of .my saidinvention, and in what manner the same is to be performed, I declarethat what I claim is 1. In a machine for the manufacture of horseshoeand other nails, the combination of the revolving ring a, the cheeks d d(1 d the jaws f for seizing and lifting the nail-blank between saidcheeks, and the die 9 for jumping the head on the nail, substantially ashereinbefore described.

2. In a machine for the manufacture of horseshoe and other nails, thecombination of the ring at, having notches a and revolving upon astationary plate or frame a with the cheeks d d d (7?, the jawsf forlifting the nail-blank between said checks, the stamping-die g, thecheek h, the rod 7c, carrying rollers 71, 72,2, and the incline Z,substantially as and for the purpose hereinbefore described.

3. In a machine for the manufacture of ence of two Witnesses, this 23dday of October,

PER ADOLF NILSSON. Vitnesses:

ANDERS GUSTAF NILSSON, LA'IH REINHOLD JOIIANSSON.

